前景大學英語自主練習2（簡體書）

《前景大學英語自主練習(第2冊)》是由復旦大學出版社出版的。

1 Lifelong Learning / 1
Ⅰ.Review / 1
Ⅱ.Extended Exercises / 3
2 Food Culture 12
Ⅰ.Review / 12
Ⅱ.Extended Exercises / 14
3 Knowledge and Skills / 23
Ⅰ.Review / 23
Ⅱ.Extended Exercises / 25
4 Sportsmanship / 33
Ⅰ.Review / 33
Ⅱ.Extended Exercises / 35
5 Life in E-era /44
Ⅰ.Review / 44
Ⅱ.Extended Exercises / 46
6 Eco-friendly World / 55
Ⅰ.Review / 55
Ⅱ.Extended Exercises / 57
7 Fads and Trends / 66
Ⅰ.Review / 66
Ⅱ.Extended Exercises / 68
8 Work Ethics /77
Ⅰ.Review / 77
Ⅱ.Extended Exercises / 79
Keys and Answers / 89

Nuclear fission, the splitting of a heavy atom's nucleus, releases great amounts of energy. For example, the energy it releases is 10 million times greater than is released by the burning of an atom of fossil fuel. Besides, it would take many hectares of land coveredwith solar collectors, wind farms or hydro-electric dams to equal this power. According to some, even when we count the cost of fossil fuel used in preparing nuclear materials and building the nuclear plant, the nuclear power is still cheaper than other energy sources. Moreover, less than one-hundredth of carbon dioxide gas is produced by nuclear power plants compared to coal or gas-fired energy plants.This means nuclear energy also emits less greenhouse gas than renewable energy sources such as wind and solar.